Need clear fresh mind set to solve problems

I have discovered a better approach to solving problem. There at time that we are so desperate and determine in solving a problem, that we won't rest or be at peace if we don't solve the problem, which in turn will make it more difficult to solve the problem as we become more stressed, scattered and confuse. It is sort of be like a loop hole effect or a positive feed back mechanism. But how I see it now is that sometimes to solve a problem, we need to first clear our mind, and come back fresher with healthier mind set. So at times, a fresh and learn mind iset is the best approach in solving problems.